[Bush] made probably the most important decision of his presidency — whether to invade Iraq — without directly asking either Powell, Rumsfeld or Director of Central Intelligence George J. Tenet for their bottom-line recommendations. (Instead of consulting his own father, former president George H.W. Bush, who had gone to war in 1991 to kick the Iraqi army out of Kuwait, the younger Bush told me that he had appealed to a “higher father” for strength.)